Self-closing valve



Dec. 7 1926.

v 1,609,565 R; M FARLAN SELF CLOSING VALVE Filed Nov. 21, 1924 2 Sheets-Sheet 1 a 7 a I A la 5 AM I l5 5 W ATTQRNEY Dec. 7 1926. 1,609,565

7 r R. MCFARLAN SELF CLOSING VALVE F iled Nov. 21, 1924 2 Sheets-Sheet 2 Patented Dec. 7, 1926.

UNITED STATE 7 1,609,565 PATENT QFFICE.

RANDALL licIEARLAN,"QF QINCINFATI, OHIO, ASSIGE'ORYATG THE WM. POVJELL COM- PANY, F CINCINNATI, orrro, soonrona'rroiv OF OHIO.

sE-LF-oLosIne VALVE.

Application filed November 21, 1924. Serial no. 751,333.

My invention relates to self closing valves particularly though not exclusively adapted for use on pipe lines requiring a rapid acting self closing valve.

The objects of my invention are to provide a simple, efficient, practical, economical and highly desirable throttle valve adapted to automatically close'wh'e'n' the hand lever is released to provide a self-closing throttle valve adapted to efiec't considerable safety when used on gasolme supply pipelines, in

boiler rooms, :gas :plantsglce plants, soot blowers, dyeing vats, turpentine tanks, canneries and can sterilizers or'for keg washing and barrel steaming or in other-situations wherein it is adapted to sheet its purpose.

My invention consists in providing 'asocl'e et in the upper side of the :disc carrier and adapted to receive a semi-ball having means for supporting a compression spring which has its outer end supported by a-detacha-ble cap, so that when said disc carrier'i's manually operated into open position said spring is compressed and adapted toautomatically close the valve whenthe hand lever thereof is released. a My -invention also consists in the cornbination, location and arrangement of parts and in thedetailsof constructionas herein set forthand claimed:

In the drawings: Fig. 1 is a side elevation of my invention showing the valve in a closed position and with the operating handle partly broken away;

Fig. 2 is the same but showing the body portion partly broken away; i

Fig. 3 is a side elevation of my invention showing the body portion partly broken away and showing the valve in'op'en'ed position; f A

Fig. 1 is a 'sectiontaken on'a line corresoondingto 4f4inFig-. 3 o f Fig: 5 i s a side elevation tithe ball membar; or pivotplate';

Fig. 6 is a plan view of thesame; Fig. 7 isan end elevation oft-he disc carnee showing the pivot plate in" operative position";

i Fig. seas a sat elevation of the sa nie'and showing the disc earner partly broken way. Fig. 9 is a plan View of the disc earner; and.v

' 1 rigt o'ass. perspawefthe fpi xfcitplate.

. In the preferred construction of my invention I provide usual valve body 1 havingfthrea'ded' inlet opening 2 and threaded outlet opening 8 for connecting suitable pipes. l Vithin chamber 1 of the body is disc carrier 4t having discs 5 and 6 disposed on either side thereof Telescopic integral extensions 7 and 8', respectfully, of discs 5 and 6 are received through hole 9 in disc carrier 4 whereby discs 5 and 6,r'e spe ctively, are :niaintained in adjustable .ivedged pos1ti'on'against opposing seats 10 and'Il and whereby openings'2 and '3 are closed by manual operation of hand-lever 12 fixed to projecting end 13 of shaft lt journaled in boss 15 of the body and having end 16 of discc'arrier fixed to its inner end at 17 To provide means for automatically actuatin'g discs 5 and 6, respectively,in closed position upo'njseats 10 and 11' for closing openings 2 and 3 in body 1 {as shown in .liigs; 1 and 2'), I provide socket 18, in top 19'of .di'sc carrier 4: adapted to receive semib all'20 integral with circular plate 21 integral with upper portion 22 of the semiballfforjsupporting the lower end 23 of coil spring2afhaving its upper end 25 in engagement with inner end 26 'o'f cap 27 threaded in orifice 28 in the upper portion of the body. Spring 2% is maintained on circular plate 21 by centrally disposed boss 29. which i'sinteg'ral with the plate and extends into eter than the inner diameter of spring 24:,

'therebypermitting the lower end of the [the position shown in Figs. 1 and 2 to the (position-shown in Fig. 3 causes rotation of shaft '14 "journaled" in" boss 15 -of body 1, whereby 'di'sfc carrier' lfhaving end 16 fixed winner end at 17 of'shaft 14, is caused'to move "upwardly and carry with it discs 5 and 16w to"the opfen'position, as" shown in Figs: 3' and 4,therebycompressing coil 2 f als-"by ball 20'rotating insock'et disc' ca Continuous manual "r'essure "on hand sprin 24. Boss 29 has' slightly less diamopened position. When it is desired to close openings 2 and 3 of body 1, hand lever 12 is released, whereby coil spring 24; exerts sufiicient pressure on plate 21 to cause disc carrier to move downwardly, permitting discs 5 and 6, respectively, to engage seats 10 and 11, thereby closing the openings An advantage of my invention is that when the valve is opened and hand or manual pressure is released from hand lever 12, coil spring 24 automatically forces discs 5 and 6, respectively, into engagement with seats 10 and 11 adiacent openings 2 and 3, whereby the valve is closed. This construction is especially advantageous when the valve is used for the purpose of permitting the flow of highly explosive liquids, such as gasoline for the reason that in the event the liquid accidentally becomes ignited, releasing hand pressure on hand lever 12 automatically closes the valve, thereby stopping the flow of liquid and greatly reducing the hazard of life and property caused by the conflagration. li hen used on pipe lines containing acids, hot water or other dangerous liquids my invention considerably reduces the hazard to which the employees are subjected. Furthermore, the construction of my invention is extremely simple and it is not likely to get out of order as the slight movement of semi ball 20 in socket 18 is not suilicient to cause excessive wear and coil spring 2i is merely compressed and considerably within its elastic limit.

lVhile I have shown and described my novel self-closing valve mechanism as adapted and intended for a particular type of valve it may also be used in any other situation to which it is adapted, and while I have shown and described a particular construction of mechanism it will be under stood that it may be varied in construction and arrangement, such as may be necessary for desired use in combination with valves having a varied construction of form, without departing from the scope or spirit thereof as defined in the claims.

W'hat I claim as new and desire to secure by Letters Patent is:

1. A self closing valve comprising a body having an orifice and having an opening, a disc carrier having a socket therein, discs slidably mounted 011 said carrier and adapted to close said opening, a pivot plate mounted in said socket, a coil spring, a cap in said orifice and having its inner end in engagement with said spring and a manually operative hand lever having connection with said carrier, whereby said discs are adapted to be removed from said openin and said spring is adapted to automatically force said discs in engagement with said body when said hand lever is released.

2. A self-closing valve comprising a body having an orifice in its top and having an inlet opening and an outlet opening oppositely disposed in the side thereof, a shaft journaled in said body, a disc carrier having one end fixed to said shaft and having a socket therein in the upper side of its free end, a pair of discs loosely mounted on said carrier and adapted to close said openings, a pivot plate mounted in said socket and comprising a semi-ball, a pivotally mounted circular plate integral therewith and a boss integral with said plate, a coil spring loosely mounted on said pivot plate and having said boss received in its lower end, a cap threaded in said orifice and having its upper inner end in engagement with the upper end of said spring and a manually operative hand lever having connection with said carrier fixed to the projecting end of said shaft whereby said discs are adapted to be removed from said openings and said spring adapted to automatically force said discs in en agement with said body downwardly when said hand lever is released whereby said openings are closed.

3. A self-closing valve comprising a body having an orifice and having an opening, a disc carrier having a socket therein, a disc mounted on said carrier and adapted to close said opening, a pivot plate mounted in said socket, a coil spring, a cap in said orifice and having its inner end in engagement with said spring and a manually operative hand lever having connection with said carrier whereby said disc is adapted to be removed from said opening and said spring is adapted to automatically force said disc into sliding engagement with said body when said hand lever is released.

4. A self-closing valve comprising a body having an orifice in its top and having an inlet opening and an outlet opening therein, a shaft journaled in said body, a disc carrier having one end fixed to said shaft and having a socket in the upper side of its free end, a pair of discs loosely mounted on said carrier and adapted to close said openings, re spectively, a semi-ball pivotally mounted in said socket, a plate integral with said ball, a boss integral with said plate, a coil spring loosely mounted on said plate and having said boss received in its lower end, a cap threaded into said orifice and having its upper inner end in engagement with the upper end of said spring and a manually operative hand lever fixed to the projecting end of said shaft.

5. A self-closing valve comprising a body having an orifice in its top and having an inlet opening and an outlet opening therein, a shaft journaled in said body, a disc carrier fixed to said shaft and having a socket therein, a pair of discs mounted on said disc carrier and adapted to close said openings, at semi-ball pivotally mounted in said socket, a plate integral with said ball, a boss integral with said plate, a coil spring loosely mounted on said plate and having said boss received in its lower end, a cap threaded into said orifice and having its upper inner end in engagement with the upper end of said spring and a manually operative hand lever fixed to said shaft whereby said spring is adapted to be compressed when said discs are removed from said openings.

6. A self-closing valve comprising a body having a threaded orifice in its top and having an inlet opening and an outlet opening therein, a. shaft journaled in said body, a disc carrier having one end fixed to said shaft and having a socket therein, a pair of discs on said carrier and adapted to close said openings, respectively, a semi-ball mounted in said socket, a plate integral with said ball, a coil spring pivotally mounted on said plate, acap threaded into said orifice and having the upper end of said coil spring in engagement with the top of said cap and a manually operative hand lever fixed to said shaft and adapted to compress said spring and simultaneously remove said discs from said opening, whereby said spring is adapted to force said discs into closing engagement with said body when said lever is released.

7. In a gate valve comprising a hollow body having a threaded orifice in its top and having an inlet opening and an outlet opening, respectively, having opposing valve seats adjacent the inner sides thereof, a shaft journaled in said body, a disc carrier having one end fixed to said shaft and havinga socket in its free end, a pair of discs mounted on said carrier and adapted to engage said seats and close said openings, respectively, the combination of a semi-ball pivotally mounted in said socket, a member integral with said ball, a coil spring loosely mounted on said member, means forretaining said lower end of said spring into engagement with said member, a cap threaded to said orifice having its upper end in engagement with the upper end of said spring whereby said discs are adapted to be maintained in engagement with said seats.

8. A self-closing valve comprising a body having an orifice therein having an inlet opening and an outlet opening, said openings being oppositely disposed, a'shaft journaled in said body, a' disc carrier having one end fixed to said shaft and having a socket therein, a pair of discs slidably mounted on said carrier and adapted to close said. openings, a ball member pivotally mounted in said socket, a coil spring mounted in engagement with said ball member, a cap secured in said orifice and having its upper inner end in engagement with said spring whereby said discs are maintained in closed position and a manually operative hand lever fixed to the projecting end of said shaft whereby said discs are adapted to be actuated for removing said discs from said openings.

RANDALL MCFARLAN. 

